Handcar races, King County Fair and Miners Day | Slideshow The King County Fair, Wilkeson's handcar races and Black Diamond's Miners Day were all held over this past weekend. If you weren't there, check out these photos! By Ray Miller-Still • July 19, 2016 2:02 pm Tags: Bonney Lake-Sumner Courier-Herald Stephanie Tags: Bonney Lake-Sumner Courier-Herald